From: Robert Klemme <shortcutter@...>
Date: 2011-02-04T19:07:29+09:00
Subject: Re: Search directory for containing specified string

On Thu, Feb 3, 2011 at 10:37 PM, Bob Hatch <roberth@monavie.com> wrote:
> I am trying to search a directory for all files that contain a specific
> string. My code can be found below. Currently, there are no errors, but
> it is not giving me filenames for files containing the text string I am
> looking for.
>
> search_text = %r{
>  .refreshrates().|

Do you want to look for literal parentheses?  Otherwise this empty
capturing group is obsolete.  Not that it should prevent matches
though.

>  .orderclose.
> }x
> files = Dir.glob("*.MQ4") {|filename|

Are file extensions really uppercase?  If unsure you could as well do

Dir.glob "*.{MQ,mq}4"

>      File.open(filename) do |outfile|
>        outfile.each_line do |line|
>    if line =~ search_text then
>        puts filename
>          end
>        end
>      end
> }

Hm, even if they are not text files you may be able to find a match.
I would not bet on it though - mixing binary data with regular
expressions is not exactly intended use. :-)

You could compare results with

egrep -l 'refreshrates|orderclose' *.MQ4

Cheers

robert

-- 
remember.guy do |as, often| as.you_can - without end
http://blog.rubybestpractices.com/